Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 07/15/2021   18:33:08   (  -0.10,-127.76) (  -0.70,-124.98)  316.10                80
 07/16/2021   06:54:32   (   0.09,-127.77) (  -0.43,-130.16)  272.08                80
 07/18/2021   06:39:41   (   0.09,-127.69) (   0.22,-127.21)   55.80                80
 07/20/2021   06:27:29   (   0.09,-127.61) (   0.81,-124.24)  382.83                80
 07/20/2021   18:48:44   (  -0.08,-127.54) (   0.31,-129.39)  209.69                80
 07/22/2021   18:39:12   (  -0.08,-127.45) (  -0.29,-126.42)  116.68                80
 07/23/2021   07:00:36   (   0.06,-127.47) (  -0.83,-131.61)  470.79                80
 07/24/2021   18:27:01   (  -0.09,-127.36) (  -0.95,-123.47)  442.72                80
 07/25/2021   06:48:25   (   0.07,-127.38) (  -0.17,-128.66)  144.91                80
 07/27/2021   06:33:33   (   0.08,-127.28) (   0.43,-125.69)  181.04                80
 07/27/2021   18:57:28   (  -0.06,-127.21) (   0.69,-130.84)  412.77                80